S0503-1-2 滝用水車の開発 : 曲面流路による水流方向制御([S0503-1]自然の流体エネルギー利用技術(1))

概要

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The aim of this investigation was to develop an environmentally friendly nano-hydraulic turbine utilizing extreme low head waterfall. The relative distance between a runner and a waterfall is one of the important factors for stable supply of electricity. Flow rate always changes day by day. So, it is often necessary to determine precisely the relative position of the runner every time flow rate changes. It is necessary to keep the stable generation by changing the runner position or controlling the waterfall direction. The former is unrealistic method because of sophisticated mechanism to adjust the runner position. Accordingly, open type cross-flow runner was selected, and control method of flow direction by use of curved channel was investigated. As a result, the maximum power coefficient reaches at 74% even when the flow rate changes by 3.0 times.
一般社団法人日本機械学会の論文
2010-09-04